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js屏蔽浏览器（IE和FireFox）的刷新和右键等功能

2018-03-12 19:20 344 查看

js屏蔽浏览器（IE和FireFox）的刷新和右键等功能
一、js屏蔽浏览器（IE和FireFox）的刷新功能
document.onkeydown=function()
{
if ((window.event.keyCode==116)|| //屏蔽 F5
(window.event.keyCode==122)|| //屏蔽 F11
(window.event.shiftKey && window.event.keyCode==121) //shift+F10
)
{
window.event.keyCode=0;
window.event.returnValue=false;
}
if ((window.event.altKey)&&(window.event.keyCode==115)){ //屏蔽Alt+F4
window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");
return false;
}
}
二、屏蔽右键
if (window.Event)
document.captureEvents(Event.MOUSEUP);
function nocontextmenu(){
event.cancelBubble = true
event.returnValue = false;
return false;
}
function norightclick(e){
if (window.Event){
if (e.which == 2 || e.which == 3)
return false;
}
else
if (event.button == 2 || event.button == 3){
event.cancelBubble = true
event.returnValue = false;
return false;
}
}
document.oncontextmenu = nocontextmenu; // for IE5+
document.onmousedown = norightclick; // for all others
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<script type="text/javascript">
function close() //author: sunlei
{
var isIE=document.all?true:false;
if(isIE){//IE浏览器
var n = window.event.screenX - window.screenLeft;
var b = n > document.documentElement.scrollWidth-20;
if(b && window.event.clientY<0 || window.event.altKey){
alert("是关闭而非刷新");
}else{
alert("是刷新而非关闭");
}
}
else{//火狐浏览器
if(document.documentElement.scrollWidth!=0)
alert("是刷新而非关闭");
else
alert("是关闭而非刷新");
}
}
</script>
<body onunload="close();">
</BODY>
</HTML>

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